<template>
  <div class="spinner" :class="className">
    <div class="double-bounce1"></div>
    <div class="double-bounce2"></div>
  </div>
</template>
<script>
export default {
  data () {
    return {
      className: ''
    }
  }
}
</script>

<style>
.spinner {
  width: 30px;
  height: 30px;
 
  position: relative;
  margin: 10px auto;
  margin-bottom: 20px;
}
 
.double-bounce1, .double-bounce2 {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #409EFF;
  opacity: 0.6;
  position: absolute;
  top: 0;
  left: 0;
   
  -webkit-animation: bounce 2.0s infinite ease-in-out;
  animation: bounce 2.0s infinite ease-in-out;
}
 
.double-bounce2 {
  -webkit-animation-delay: -1.0s;
  animation-delay: -1.0s;
}
 
@-webkit-keyframes bounce {
  0%, 100% { -webkit-transform: scale(0.0) }
  50% { -webkit-transform: scale(1.0) }
}
 
@keyframes bounce {
  0%, 100% {
    transform: scale(0.0);
    -webkit-transform: scale(0.0);
  } 50% {
    transform: scale(1.0);
    -webkit-transform: scale(1.0);
  }
}
</style>
